RU2828375C1 - Apparatus for mixing loose materials - Google Patents

Abstract

FIELD: various technological processes.

SUBSTANCE: apparatus for mixing loose materials comprises a horizontal housing with a cover, loading and unloading devices, located in the housing parallel shafts with spiral guides arranged on them. Ends of shafts are installed in hollow cross-shaped carriers, inside which there are chain transmissions connecting sprockets on shafts and sprockets on central axis installed along horizontal housing, and direction of spirals of spiral guides on adjacent shafts is opposite. Between turns of spiral guides on shafts elastic beats are installed, the length of which is more than height of spiral guides turns, elastic beats have a wavy shape. On the spiral guides there are round holes located at the same distance from the edge, between which on different sides of the spiral guides there are ledges and cavities of rectangular and triangular shape, respectively.

EFFECT: proposed apparatus for mixing loose materials provides good mixing of loose media.

1 cl, 4 dwg

Description

The proposed invention is intended for use in the chemical industry, the agro-industrial complex, the production of building materials and other industries.

A device for mixing dry components of a concrete mixture is known [A.s. 852582 USSR, B28C 5/36, published 07.08.1981, BI No. 29], containing loading and unloading devices, a conveyor, parallel shafts with spiral guides located above the conveyor.

The disadvantages of this device include the complexity of the design and the low quality of mixing of materials, the content of which in the mixture differs by an order of magnitude or more.

The closest to the proposed invention is an apparatus for mixing bulk materials, comprising a horizontal housing with a lid, loading and unloading devices, parallel shafts located in the housing, with spiral guides placed on them, the ends of the shafts are installed in hollow cross-shaped carriers, inside which chain drives are located, connecting the sprockets on the shafts and the sprockets on the central axis installed along the horizontal housing, and the direction of the spirals of the spiral guides on adjacent shafts is opposite, and between the turns of the spiral guides on the shafts, elastic beaters are installed, the length of which is greater than the height of the turns of the spiral guides. [RU Patent No. 2800926, B01F 27/721, published 01.08.2023, BI No. 22].

The disadvantages of this device include the low quality of mixing materials.

The technical result of this invention is the creation of an apparatus for mixing bulk materials that has high quality of mixing materials.

The technical result is achieved in that a device for mixing bulk materials is proposed, comprising a horizontal housing with a cover, loading and unloading devices, parallel shafts located in the housing, with spiral guides placed on them, the ends of the shafts are installed in hollow cross-shaped carriers, inside which chain transmissions are placed, connecting sprockets on the shafts and sprockets on the central axis installed along the horizontal housing, and the direction of the spirals of the spiral guides on adjacent shafts is opposite, and between the turns of the spiral guides on the shafts, elastic beaters are installed, the length of which is greater than the height of the turns of the spiral guides.

The distinctive design features of the proposed invention are that the elastic beaters have a wave-like shape, and on the spiral guides there are round holes located at the same distance from the edge, between which protrusions and depressions of rectangular and triangular shapes, respectively, are placed on different sides of the spiral guides.

Fig. 1 shows a diagram of an apparatus for mixing bulk materials.

Fig. 2 shows view A (positions 15 and 16 are not shown).

Fig. 3 shows an enlarged (2:1) view of the internal cavity of the carrier with a chain drive.

Fig. 4 shows view B.

The apparatus for mixing bulk materials comprises a horizontal housing 1 with a cover 2, loading devices 3 and unloading devices 4, parallel shafts 5 located in the housing, with spiral guides 6 placed on them. The ends of the shafts 5 are mounted in hollow cross-shaped carriers 7, inside which chain drives 8 are placed, connecting sprockets 9 on the shafts 5 and sprockets 10 on the central axis 11 installed along the horizontal housing 1, and the direction of the spirals of the spiral guides 6 on adjacent shafts 5 is opposite, and between the turns of the spiral guides 6 on the shafts 5, elastic beaters 12 are installed, the length of which is greater than the height of the turns of the spiral guides 6. The shafts 5 are driven by an electric motor 13 through chain drives 8. The cross-shaped carriers 7 are driven by an electric motor 14. The mixture is unloaded through the unloading device 4. The elastic beaters 12 have a wave-like shape, and on the spiral guides 6, round holes 15 are made, located at the same distance from the edge, between which protrusions 16 and depressions 17 of rectangular and triangular shape, respectively, are placed on different sides of the spiral guides 6.

The apparatus for mixing bulk materials operates as follows.

The bulk materials to be mixed are fed from loading devices 3 into the internal volume of housing 1 and are concentrated in its lower part. The supply of materials is stopped.

Mixing occurs through repeated action on the mixture of spiral guides 6 and elastic beaters 12.

When the guides 7 rotate, the spiral guides 6 and elastic beaters 12, rotating together with the shafts 5, alternately penetrate into the materials located in the lower part of the housing 1. The spiral guides 6 move the materials along the axis of the housing, and the elastic beaters 12 act in the circumferential direction (perpendicular to the axis of the housing 1).

Due to the fact that the direction of the spirals of the spiral guides 6 on adjacent shafts 5 is opposite, an alternate change in the direction of action on the mixture occurs, which leads to an increase in the quality of mixing.

Due to the fact that the length of the beaters 12 is greater than the height of the turns of the spiral guides 6, their deformation against the inner walls of the housing 1 occurs, which leads to an intensive impact on the particles of materials in the inter-turn space of the spiral guides 6, which contributes to the intensification of the mixing process.

For installation of internal organs, cleaning and repair, the body 1 is equipped with a cover 2.

Due to the fact that the elastic beaters 12 have a wave-like shape, the particles of the materials being mixed are affected at different angles and with different intensity, which improves the quality of mixing.

Due to the fact that round holes 15 are made on the spiral guides 6, located at the same distance from the edge, the materials are poured through them, which improves the quality of mixing.

Due to the fact that between the openings 15, on different sides of the spiral guides 6, protrusions 16 and depressions 17 of rectangular and triangular shape, respectively, are placed, additional impact on the materials is ensured, which increases the quality of the resulting mixture. The implementation of protrusions 16 and depressions 17 of rectangular and triangular shape, respectively, ensures multiple changes in the direction of impact on the particles.

The proposed apparatus for mixing bulk materials allows for good mixing of bulk media.

Claims (1)

An apparatus for mixing bulk materials, comprising a horizontal housing with a lid, loading and unloading devices, parallel shafts located in the housing with spiral guides placed on them, the ends of the shafts are installed in hollow cross-shaped carriers, inside which chain drives are placed, connecting sprockets on the shafts and sprockets on the central axis installed along the horizontal housing, and the direction of the spirals of the spiral guides on adjacent shafts is opposite, and between the turns of the spiral guides on the shafts elastic beaters are installed, the length of which is greater than the height of the turns of the spiral guides, characterized in that the elastic beaters have a wave-like shape, and on the spiral guides round holes are made located at the same distance from the edge, between which protrusions and depressions of a rectangular and triangular shape are placed on different sides of the spiral guides, respectively.

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